Finding the Fourth Proportional to 207.54, 286.26 and 145.26
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Solution
The fourth proportional to 207.54, 286.26 and 145.26 is: 200.36
Step by Step Solution
- Step 1: Write the proportion equation
207.54 : 286.26 = 145.26 : x - Step 2: Convert to fraction form
207.54/286.26 = 145.26/x - Step 3: Cross multiply
207.54x = 286.26 × 145.26 - Step 4: Simplify right side
207.54x = 41,582.13 - Step 5: Solve for x
x = 41,582.13/207.54 - Step 6: Final answer
x = 200.36
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.